EP3415811A1 - Lampe für ein fahrzeug und fahrzeug damit - Google Patents

Lampe für ein fahrzeug und fahrzeug damit Download PDF

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Publication number
EP3415811A1
EP3415811A1 EP18177295.5A EP18177295A EP3415811A1 EP 3415811 A1 EP3415811 A1 EP 3415811A1 EP 18177295 A EP18177295 A EP 18177295A EP 3415811 A1 EP3415811 A1 EP 3415811A1
Authority
EP
European Patent Office
Prior art keywords
array modules
micro led
lamp
array
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18177295.5A
Other languages
English (en)
French (fr)
Other versions
EP3415811B1 (de
Inventor
Juung Jo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZKW Group GmbH
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP3415811A1 publication Critical patent/EP3415811A1/de
Application granted granted Critical
Publication of EP3415811B1 publication Critical patent/EP3415811B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/30—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/46—Forced cooling using liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0088—Details of electrical connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/18—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights being additional front lights
    • B60Q1/20—Fog lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/60—Light sources with three-dimensionally disposed light-generating elements on stacked substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0756—Stacked arrangements of devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/507—Wavelength conversion elements the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

Definitions

  • the vehicle includes lamps.
  • the vehicle includes a head lamp, a rear combination lamp, and a fog lamp.
  • LED Light Emitting Diode
  • output power of a single micro LED device may be limited. In some cases, a vehicle lamp using micro LED devices may not provide a sufficient light amount.
  • Another object of the present disclosure may be to provide a vehicle including the aforementioned lamp.
  • each of the plurality of array modules may include a first array module including a first group of micro LED devices disposed in a first pattern, and a second array module including a second group of micro LED devices disposed in a second pattern that is different from the first pattern, where the first array module and the second array module are arranged in the stacked configuration.
  • the light generation unit may further include a phosphor layer configured to change a wavelength of a first light generated by the first group of micro LED devices, and to change a wavelength of a second light generated by the second group of micro LED devices.
  • the plurality of array modules may be stacked with one another along a horizontal direction, and the plurality of array modules is configured to output light toward the lens.
  • the lamp may further include a light guide that comprises a plurality of optical waveguides, where the plurality of optical waveguides are configured to lead, toward the lens, light generated by one or more micro LED devices of the plurality of array modules.
  • the lamp may further include a reflector, where the plurality of array modules are stacked along a vertical direction, and configured to output, toward the reflector, light generated by the plurality of array modules.
  • the reflector may include a plurality of reflection facets configured to reflect light from the plurality of micro LED devices, and a number of the plurality of reflection facets is based on a density of the plurality of micro LED devices.
  • the lamp may further include a cooling device configured to dissipate heat generated from the light generation unit, and a bracket connected to the cooling device and configured to support the plurality of array modules, the bracket comprising a metal material.
  • the lamp may further include a thermal conductive adhesive configured to couple the plurality of array modules to the bracket.
  • the plurality of micro LED devices may include an electrode comprising a metal material, and the cooling device may be configured to dissipate heat that is transferred from the light generation unit through the electrode, the thermal conductive adhesive, and the bracket.
  • the cooling device may extend in a direction parallel to an optical axis of the lens, and the plurality of array modules may include a first plurality of array modules that are stacked at a first side of the cooling device, and a second plurality of array modules that are stacked at a second side of the cooling device that is different than the first side.
  • a vehicle includes the lamp that includes one or more of the features described above.
  • a vehicle includes a plurality of wheels, a power source configured to drive a rotation of at least one of the plurality of wheels, and a lamp for the vehicle.
  • the lamp for the vehicle includes a light generation unit configured to generate light, and a lens configured to change an optical path of light generated by the light generation unit.
  • the light generation unit includes a plurality of array modules, where each array module includes a plurality of micro Light Emitting Diode (LED) devices, and the plurality of array modules are arranged in a stacked configuration.
  • LED Light Emitting Diode
  • a plurality of array modules are stacked, an amount of light may improve.
  • micro LED devices are disposed in a different pattern in each of the stacked array modules, an amount of light loss may be minimized.
  • a vehicle as described in this specification may include an automobile, a motorcycle, other types of vehicles.
  • a description will be given based on an automobile.
  • a vehicle as described in this specification may include all of an internal combustion engine vehicle including an engine as a power source, a hybrid vehicle including both an engine and an electric motor as a power source, and an electric vehicle including an electric motor as a power source.
  • the left side of the vehicle refers to the left side in the forward driving direction of the vehicle
  • the right side of the vehicle refers to the right side in the forward driving direction of the vehicle
  • arrangement of micro LED devices and transfer of micro LED devices may be used inter-exchangeable with each other.
  • a vehicle 10 may include a lamp 100 for vehicle.
  • the lamp 100 may further include a room lamp, a turn signal lamp, a daytime running lamp, a back lamp, and a positioning lamp.
  • overall length means the length from the front end to the rear end of the vehicle 10
  • overall width means the width of the vehicle 10
  • overall height means the height from the bottom of the wheel to the roof.
  • overall length direction L may mean the reference direction for the measurement of the overall length of the vehicle 10
  • overall width direction W may mean the reference direction for the measurement of the overall width of the vehicle 10
  • overall height direction H may mean the reference direction for the measurement of the overall height of the vehicle 10.
  • the input unit 110 may receive a user input for controlling turning on or off of the light generation unit 160.
  • the sensing unit 120 may include one or more sensors.
  • the interface unit 130 may transmit information, data, or a signal, generated by the processor 170, to another device provided in the vehicle 10.
  • the information on an object located outside of the vehicle 10 may include: information on the presence of the object, information on a location of the object, information on movement of the object, information on a distance between the vehicle 10 and the object, information on a speed of the vehicle 10 relative to the object, and information on a type of the object.
  • the object may include a line, a nearby vehicle, a pedestrian, a two-wheeled vehicle, a traffic signal, a light, a road, a structure, a bump, a geographical feature, and an animal.
  • the navigation information may be generated by a navigation apparatus provided in the vehicle 10.
  • the vehicle state information may include vehicle position information, vehicle speed information, vehicle tilt information, vehicle weight information, vehicle direction information, vehicle battery information, vehicle fuel information, vehicle tire pressure information, vehicle steering information, in-vehicle temperature information, in-vehicle humidity information, pedal position information, vehicle engine temperature information, etc.
  • the vehicle state information may be generated based on sensing information of various sensors provided in the vehicle 10.
  • the light generation unit 160 may convert electrical energy into light energy.
  • the light generation unit 160 may include a plurality of array modules 200 on which a plurality of micro Light Emitting Diode (LED) devices is disposed.
  • LED Light Emitting Diode
  • the plurality of array modules 200 may be stacked with each other.
  • the array module 200 may include a substrate and a subarray in which the plurality of micro led devices is disposed.
  • the array module 200 may include one or more subarrays.
  • the substrate may include a Flexible Copper Clad Laminated (FCCL) substrate.
  • FCCL Flexible Copper Clad Laminated
  • a base 911 (see FIG. 6 ) and a second anode 912 (see FIG. 6 ) may form a substrate.
  • the position adjustment unit 165 may adjust a position of the light generation unit 160.
  • the position adjustment unit 165 may control the light generation unit 160 to be panned. Due to the panning control of the light generation unit 160, output light may be adjusted in a left-right direction (e.g., the overall width direction).
  • the position adjustment unit 165 may adjust a position of the light generation unit 160 upward further than when the light generation unit 160 generates a low beam.
  • the processor 170 may be electrically connected to each unit of the lamp 100.
  • the processor 170 may control overall operation of each unit of the lamp 100.
  • the processor 170 may control the light generation unit 160.
  • the processor 170 may control the light generation unit 160.
  • the processor 170 may control the plurality of array modules 200 on a region basis.
  • the processor 170 may control the plurality of array modules 200 on a region basis in a manner of supplying a different amount of electrical energy to micro LED devices disposed on each region of the plurality of array modules 200.
  • the processor 170 may control the plurality of array module 200 on a layer basis.
  • the processor 170 may control the plurality of array modules 200 on a layer basis in a manner of supplying a different amount of electrical energy to micro LED devices disposed in each layer of the plurality of array modules 200.
  • the power supply unit 190 may supply electrical energy to each unit of the lamp 100.
  • the power supply unit 190 may be supplied with power from a battery inside the vehicle 10.
  • FIG. 3 is a diagram illustrating an example lamp for a vehicle.
  • a head lamp is illustrated as an exemplary lamp for the vehicle 10.
  • a lamp 100 for a vehicle may include a light generation unit 160, a reflector 310, and a lens 320.
  • the reflector 310 reflects light generated by the light generation unit 160.
  • the reflector 310 induces the light to be emitted toward an area in front of or behind the vehicle 10.
  • the reflector 310 may be made of aluminum (Al) or silver (Ag) material having decent reflectance, or may be coated on a reflective surface.
  • the lens 320 is disposed in front of the light generation unit 160 and the reflector 310.
  • the lens 320 allows light, generated by the light generation unit 160 or reflected by the reflector 310, to be refracted and pass therethrough.
  • the lens 320 may be an aspheric lens.
  • FIG. 4 is a diagram illustrating an example plurality of array modules.
  • the light generation unit 160 may include a plurality of array modules 200 in which a plurality of micro LED devices is disposed.
  • the light generation unit 160 may include a first array module 210 and a second array module 220.
  • the second array module 220 may be different from the first array module 210 in terms of at least one of: an interval for a plurality of micro LED devices, positions of a plurality of micro LED devices in each array module, or a density of a plurality of micro LED devices.
  • the density of the plurality of micro LED devices indicates the number of micro LED devices per unit area.
  • a plurality of micro LED devices included in the first array module 210 may be disposed at a first interval.
  • the plurality of micro LED devices included in the first group may be disposed at the first interval.
  • a second group of micro LED devices may be disposed in a second pattern different from the first pattern.
  • the second pattern may be determined by at least one of: an interval for the micro LED devices included in the second group, position of the micro LED devices included in the second group in an array module, or a density of the micro LED devices included in the second group.
  • the plurality of micro LED devices included in the second array module 220 may be disposed at an interval as the same as the interval at which the plurality of micro LED devices included in the first array module 210 is disposed.
  • the plurality of micro LED devices included in the second group may be disposed at an interval as the same as the interval at which the plurality of micro LED devices included in the first group is disposed.
  • the plurality of micro LED devices included in the second group may be disposed not to overlap in a vertical or horizontal direction with the plurality of micro LED devices included in the first group.
  • the first group of micro LED devices may be disposed in the first array module 210 not to overlap with the second group of micro LED devices when the first array module 210 and the second array module 220 overlapping with each other is viewed from above.
  • the second group of micro LED devices may be disposed in the second array module 220 not to overlap with the first group of micro LED devices when the second array module 220 and the first array module 210 stacked with each other are viewed from above.
  • the second group of micro LED devices are offset from the first group of micro LED devices in a first direction or a second direction that is orthogonal to the first direction.
  • projection lines of the second group of micro LED devices may be offset from projection lines of the first ground of micro LED devices when the first and second array modules 210 and 220 are stacked.
  • the light generation unit 160 may include three or more array modules.
  • FIG. 5A illustrates an exemplary top view of an example plurality of array modules overlapping with each other.
  • FIG. 5B illustrates an exemplary side view of the plurality of array modules overlapping with each other.
  • the processor 170 may control regions 201 to 209 on the plurality of array modules 200 individually.
  • the regions 201 to 209 shown in FIG. 5A may be defined in each layer 210 to 290 shown in FIG. 5B of the plurality of array modules 200.
  • the processor 170 may adjust a light distribution pattern for each region of the plurality of array modules 200 individually.
  • the plurality of array modules 200 may be divided into a plurality of regions 201 to 209.
  • the processor 270 may adjust an amount of electrical energy to be supplied to each of the plurality of regions 201 to 209.
  • the processor 170 may control layers of the plurality of array modules 200 individually.
  • the processor 270 may adjust an amount of light of output power for each layer of the plurality of array modules 200.
  • the plurality of array modules 200 may be composed of a plurality of layers.
  • the plurality of layers may be composed of the plurality of array modules 200, respectively.
  • a first layer for the plurality of array modules 200 may be formed by a first array module, and a second layer for the plurality of array modules 200 may be formed by a second array module.
  • FIG. 6 illustrates a first array module 210 and a second array module 220 included the plurality of array modules 200.
  • the plurality of array modules 200 may include three or more array modules.
  • the base 911 may be made of polyimide (PI). In some examples, the base 911 may be a flexible printed circuit board (PCB).
  • PI polyimide
  • PCB flexible printed circuit board
  • the second array module 220 may be formed between the first array module 210 and the base 911.
  • the second anode 912b may be formed between the base 911 and the reflective layer 913.
  • the reflective layer 913 may be formed on the second anode 912b.
  • the reflective layer 913 may reflect light generated by a plurality of micro LED devices 920.
  • the reflective layer 913 may be made of silver (Ag), for instance.
  • the second group of micro LED devices 920b may be formed on the second anode 912b.
  • Each of the micro LED devices 920b included in the second group may be attached to the reflective layer 913 or the second anode 912b using a solder material or an Anisotropic Conductive Film (ACF).
  • ACF Anisotropic Conductive Film
  • the second optical spacer 916b may be formed on the second inter-layer dielectric film 914b.
  • the optical spacer 916b is used to keep the second group of micro LED devices 920b and the first array module 210 at a distance from each other, and the optical spacer 916b may be made of an insulating material.
  • the first anode 912a and the first cathode 915a may be referred to as transparent electrodes.
  • the first anode 912a and the first cathode 915a may include at least one metal material or a combination of metal materials, including but not limited to nickel (Ni), platinum (Pt), ruthenium (Ru), iridium (Ir), rhodium (Rh), tantalum (Ta), molybdenum (Mo), titan (Ti), silver (Ag), tungsten (W), copper (Cu), chromium (Cr), palladium (Pd), vanadium (V), cobalt (Co), niobium (Nb), zirconium (Zr), indium tin oxide (ITO), aluminum zinc oxide (AZO) and Indium Zinc Oxide (IZO).
  • the first anode 912a may be formed between the second optical spacer 916b and the first inter-layer dielectric film 914a.
  • the first cathode 915a may be formed on the first inter-layer dielectric film 914a.
  • the first group of micro LED devices 920a may be formed on the first anode 912a.
  • Each of the micro LED devices 920a included in the first group may be attached to the first anode 912a using a solder material or an Anisotropic Conductive Film (ACF).
  • ACF Anisotropic Conductive Film
  • the phosphor layer 917 may be formed on the first optical spacer 916a.
  • the phosphor layer 917 may be formed of resin in which phosphorus is evenly distributed.
  • any one selected from a blue light-emitting phosphor, a blue-green light-emitting phosphor, a green light-emitting phosphor, a yellow-green light-emitting phosphor, a yellow light-emitting phosphor, a yellow-red light-emitting phosphor, an orange light-emitting phosphor, and a red light-emitting phosphor may be applied as the phosphor.
  • the plurality of micro LED devices 920b included in the second array module 220 may be disposed not to overlap in a vertical or horizontal direction with the plurality of micro LED devices 920a included in the first array module 210.
  • the plurality of micro LED devices 920b included in the second group may be disposed not to overlap in a vertical or horizontal direction with the plurality of micro LED devices 920a included in the first group.
  • the first and second groups of micro LED devices 920a and 920b may output light in the vertical direction.
  • a horizontal direction may be a direction in which the first and second groups of micro LED devices 920a and 920b.
  • the lamp 100 may include a first wire 219 and a second wire 229.
  • FIGS. 7A to 7E are diagrams illustrating example structures in which a plurality of array modules are stacked in a vertical direction.
  • the lamp 100 may include a light generation unit 160, a reflector 310, and a lens 320.
  • the light generation unit 160 may include a plurality of array modules 200.
  • the plurality of array modules 200 may be disposed to be stacked in a vertical direction (e.g., an up-down direction).
  • the vertical direction may be defined as a direction vertical to the ground.
  • the vertical direction may indicate an overall height direction of the vehicle 10.
  • the plurality of array module may be stacked in a vertical direction with respect to the optical axis 321 of the lens 320.
  • Light generated by the plurality of array modules 200 may be output toward the reflector 310.
  • Light reflected by the reflector 310 may pass through the lens 320 and be then emitted to the outside of the vehicle 10.
  • the lamp 100 may further include a shield 710.
  • the shield 710 may output part of light generated by the light generation unit 160.
  • the shield 710 may be used to prevent glaring of an opposing driver.
  • FIG. 7B illustrates the plurality of array modules 200 viewed from above.
  • the plurality of array modules 200 may include a first array module 210, a second array module 220, and a third array module 230.
  • the lamp 100 may function as a head lamp, a rear combination lamp, a fog lamp, a turn signal lamp, etc.
  • the number of array modules stacked with one another and included in the plurality of array modules 200 may be determined based on which lamp the lamp 100 functions as and how much amount of light is required.
  • a plurality of micro LED devices may be disposed in a first region 201 in the plurality of array modules 200.
  • the number of micro LED devices disposed in the first region 201 may be the sum of micro LED devices in the first region 201 of each of the plurality of array modules 200.
  • micro LED devices disposed in the first region 201 may consist of a first micro LED device 201a, a second micro LED device 201b, and a third micro LED device 201c.
  • the first micro LED device 201a may be disposed in the first location of the first array module 210.
  • the second micro LED device 201b may be disposed in the second location of the second array module 220.
  • the third micro LED device 201c may be disposed in the third location of the third array module 230.
  • a plurality of micro LED devices disposed in each of the plurality of array modules 200 may be disposed at the same interval.
  • the plurality of micro LED devices disposed in each of the plurality of array modules 200 may be disposed at different positions in the same region.
  • the plurality of micro LED devices disposed in each of the plurality of array modules 200 may be disposed not to overlap with one another, when viewed from above.
  • the first micro LED device 201a may be disposed at a first position in the first region 201 of the first array module 210.
  • the second micro LED device 201b may be disposed at a second position in the first region 201 of the second array module 220.
  • the second position is different from the first position.
  • the third micro LED device 201c may be disposed at a third position in the first region 201 of the third array module 230.
  • the third position is different from the first position and the second position.
  • the first region of the first array module 210, the first region of the second array module 220, and the first region of the third array module 230 may be described as the same region when the first, second, and third array modules 210, 220, and 230 are stacked and viewed from above.
  • FIGS. 7C and 7D are diagram illustrating example reflectors.
  • the reflector 310 may include a plurality of reflection facets.
  • the plurality of reflection facets 311 may be formed based on a density of a plurality of micro LED devices.
  • the density may be defined as the number of micro LED devices disposed per unit area in the plurality of array modules 200.
  • a number of the reflection facets 311 may be determined based on the density of the micro LED devices.
  • the reflector 310 may include a plurality of reflection facets corresponding to a plurality of regions 791 into which the plurality of array modules 200 is divided by a reference density.
  • the reflector 310 may include reflection facets 311 whose number corresponds to the plurality of regions 791 into which the plurality of array modules 200 is divided by a reference density.
  • the plurality of array modules 200 may be divided into first to fourth regions 791a, 791b, 791c, and 791d by a first density value.
  • the reflector 310 may include first to fourth reflection facets 311a, 311b, 311c, and 311d which respectively correspond to the first to fourth regions 791a, 791b, 791c, and 791d.
  • the reflection facets 311a to 311d may be angled differently.
  • the plurality of reflection facets 311 may be respectively disposed at optimal positions at which lights are induced to be reflected toward the lens 320 from the plurality of regions 791 of the plurality of array modules 200, where the plurality of regions 791 respectively correspond to the plurality of reflection facets 311.
  • the plurality of reflection facets 311 may be respectively formed at positions on which lights respectively generated by the regions 791 of the reflector 310 are focused.
  • the first reflection facet 311a may be formed at a first position of the reflector 310 on which light generated by the first region 791a is focused.
  • the second reflection facet 311b may be formed at a second position of the reflector 310 on which light generated by the second region 791b is focused.
  • the third reflection facet 311c may be formed at a third position of the reflector 310, on which light generated by the third region 791c is focused.
  • the fourth reflection facet 311d may be formed at a fourth position of the reflector 310 on which light generated by the fourth region 791d is focused.
  • Each of the plurality of reflection facets 311 may be concave-shaped with respect to the plurality of array modules 200, so that lights generated by each of the regions 791 of the reflector 310 is reflected toward the lens 320 without any light loss.
  • the plurality of array modules 200 may be divided into first to ninth regions by a first density value.
  • the reflector 310 may include first to ninth reflection facets respectively corresponding to the first to ninth regions.
  • FIG. 7E is a diagram illustrating an example Micro Lens Array (MLA) module.
  • MLA Micro Lens Array
  • the lamp 100 may further include a Micro Lens Array (MLA) 1010.
  • MLA Micro Lens Array
  • the MLA 1010 may be disposed on the plurality of array modules 200.
  • the MLA 1010 may be disposed on the phosphor layer 917, the color filter film 918, or the cover film 919.
  • the MLA 1010 may be formed based on a density of the plurality of micro LED devices.
  • the MLA 1010 may include a plurality of sub-lenses 1011 respectively corresponding to a plurality of regions 791 (see FIG. 7E ) into which the plurality of array module 200 is divided by a reference density.
  • the MLA 1010 may include sub-lenses 1011, whose number corresponds to the number of plurality of regions 791 into which the plurality of array modules 200 is divided by the reference density.
  • the MLA 1010 may be formed such that the plurality of sub-lenses 1011 is respectively positioned on a plurality of optical paths generated by the plurality of regions 791.
  • the MLA 1010 may induce light, generated by the plurality of array modules 200, toward the reflector 310.
  • the MLA 1010 may induce a plurality of lights, which is generated by the plurality of array modules 200, toward a plurality of reflection facets 311, individually.
  • the plurality of array modules 200 may include a first region and a second region.
  • the MLA 1010 may include a first sub-lens and a second sub-lens.
  • the reflector 310 may include a first reflection facet and a second reflection facet.
  • a first light generated by the first region may be induced by the first sub-les and then incident on the first reflection facet.
  • the first light incident on the first reflection facet may be reflected and then incident on the lens 320.
  • a second light generated by the second region may be induced by the second sub-lens and then incident on the second reflection facet.
  • the second light incident on the second reflection facet may be reflected and then incident on the lens 320.
  • FIG. 8 is a diagram illustrating an example structure in which a plurality of array modules is stacked in a horizontal direction.
  • the lamp 100 may include a light generation unit 160, a light guide 810, and a lens 320.
  • the light generation unit 160 may include a plurality of array modules 200.
  • the plurality of array modules 200 may be stacked with one another in a horizontal direction (e.g., a front-rear direction).
  • the horizontal direction may be defined as a direction parallel to the ground.
  • Being parallel does not indicate a meaning in mathematics, but may be understood as an expression used to explain a location, a direction, and a position in a space.
  • the plurality of array modules 200 may be stacked in a direction of an optical axis 321 of the lens 320.
  • Light generated by the plurality of array modules 200 may be output toward the lens 320.
  • the light guide 810 may guide the light, generated by the plurality of array modules 200, toward the lens 320.
  • the light guide 810 may include a plurality of optical fiber branches 811.
  • the number of optical fiber branches 811a, 811b, and 811c may be determined based on the number of regions into which the plurality of array modules 200 is divided by a density of micro LED devices.
  • the optical fiber branches may be waveguides that are configured to lead, toward the lens, light generated by one or more micro LED devices included in the plurality of array modules 200.
  • the plurality of optical fiber branches 811a, 811b, and 811c may induce light, generated by one or more micro LED devices included in the plurality of array modules 200, toward the lens 320.
  • the lamp 100 may further include a shield.
  • the shield may prevent part of the light generated by the light generation unit 160.
  • the shield may be used to prevent glare on an opposing driver.
  • FIGS. 9A and 9B are diagrams illustrating an example cooling system.
  • the cooling system may include a cooling device such as a heat sink, Peltier elements, a fan, a water cooling device, an air cooling device, etc.
  • the lamp 100 may further include a cooling system 980 and a bracket 990.
  • the cooling system 980 may process heat generated in the light generation unit 160.
  • the cooling system 980 may utilize a water cooling method or an air cooling method.
  • the bracket 990 may fix the plurality of array modules 200.
  • the bracket 990 may be made of a metal material.
  • a plurality of micro LED devices 920a and 920b may include electrodes made of a metal material.
  • the electrodes may be anodes 912a and 921b or cathodes 915a and 915b which are described above with reference to FIG. 6 .
  • the bracket 990 may be connected to the anodes 912a and 912b (see FIG. 6 ) or the cathodes 915a and 915b (see FIG. 6 ) included in each of the plurality of array modules 200.
  • FIG. 9B is an enlarged version of a portion A of FIG. 9A .
  • the lamp 100 may further include a thermal conductive adhesive 985.
  • the thermal conductive adhesive 985 may allow the plurality of array modules 200 to be attached to the bracket 990.
  • the thermal conductive adhesive 985 may transfer heat from the electrodes 915 to the bracket 990.
  • Heat generated in the light generation unit 160 may be transferred to the cooling system 980 through the thermal conductive adhesive 985 and the bracket 990.
  • the bracket 990 may be connected to the cooling system 980.
  • the bracket 990 may transfer heat, which is generated when light is generated by the plurality of array modules 200, to the cooling system 980.
  • the cooling system 980 may be disposed in parallel with an optical axis of the lens 320.
  • the plurality of array modules 200 may be stacked with one another above and below the cooling system 980.
  • the cooling system 980 As the plurality of array modules 200 are stacked above and below the cooling system 980, it is possible to secure a sufficient output power and efficiently processing heat.
  • FIG. 10 is a diagram illustrating an example plurality of array modules.
  • the plurality of array modules 200 each may include a transparent electrode 915.
  • the transparent electrode 915 may include a cathode 915a or 915b shown in FIG. 6 .
  • the light generation unit 160 may include a base 911 on which the plurality of array modules 200 is disposed.
  • the light generation unit 160 may include the plurality of array modules 200 which is disposed above and below the base 911.
  • light which is generated by a plurality of array modules disposed above the base 911 and travels downward, may be induced in a direction toward a reflector positioned below the base 911. As a result, light efficiency improves.

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EP18177295.5A 2017-06-14 2018-06-12 Lampe für ein fahrzeug und fahrzeug damit Active EP3415811B1 (de)

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US10451236B2 (en) 2019-10-22
KR20180136262A (ko) 2018-12-24
EP3415811B1 (de) 2021-03-31
KR101989099B1 (ko) 2019-06-13

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